/* 广告 */
body {
    background-color: #f8f8f8;
}

.head-nav ul .active {
    border-bottom: 3px solid #ccc;


}

.banner {
    width: 100%;
    height: 360px;
    background-color: rgba(0, 0, 0, .8);
    text-align: center;
    padding-top: 154px;
    color: #fff;
}

.banner h2 {
    font-size: 40px;
}

.banner p {
    margin-top: 16px;
}

/* 案例内容 */
.allCase h2 {
    margin-top: 34px;
    font-size: 16px;
}

.allCase h2>span {
    font-size: 10px;
    color: #999;
}

.allCase .line {
    content: '';
    width: 14px;
    border-bottom: 1px solid #127eaf;
    margin: 12px 0 9px 0;
}

.allCase ul li {
    padding: 10px 5px;
    width: 354px;
    height: 344px;
    background-color: #f8f8f8;
    border: 1px solid #eee;
    margin-right: 24px;
}

.allCase ul li img {
    width: 334px;
    height: 146px;
}

.allCase-content h3 {
    font-size: 16px;
    line-height: 50px;
}

.allCase-content p {
    color: #666;
    margin-bottom: 22px;
    line-height: 18px;
}

.allCase ul li a {
    color: #127eaf;
}

.allCase>div {
    margin-bottom: 20px;
}

.allCase ul p {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    overflow: hidden;
}

.imgCase ul li {
    width: 356px;
    height: 126px;
    float: left;
    margin-bottom: 18px;
    position: relative;
}

.imgCase ul li img {
    width: 172px;
    height: 40px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.elevator {
    position: absolute;
    top: 400px;

    left: 50%;
    /* 与版心对齐 */
    margin-left: 600px;
    width: 72px;
    margin-top: 32px;

    /* transition: top 2s; */
}

.on {

    position: fixed;
    top: 20px;

}

.elevator p {
    position: relative;
    font-size: 14px;
    line-height: 40px;
    cursor: pointer;
}

/* 当前楼层 */
.elevator .active::before {
    position: absolute;
    top: 20px;
    left: -14px;
    content: "";
    width: 8px;
    height: 2px;
    background-color: #1271ef;
    /* display: none; */
}